<template>
  <div class="container">
    <div class="app-container">
      <el-button type="primary" size="mini" @click="addPermission(0, 1)">添加权限</el-button>
      <el-table
        :data="list"
        row-key="id"
        default-expand-all
        border
        :header-cell-style="{ background: '#f5f6f8' }"
      >
        <el-table-column label="名称" prop="name" />
        <el-table-column label="标识" prop="code" />
        <el-table-column label="描述" prop="description" />
        <el-table-column label="操作">
          <template v-slot="{ row }">
            <el-button v-if="row.type === 1" type="text" @click="addPermission(row.id, 2)">添加</el-button>
            <el-button type="text" @click="editPermission(row.id)">编辑</el-button>
            <el-button type="text" @click="delPermission(row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <!-- 放置一个弹层 用来编辑新增节点 -->
    <el-dialog :title="`${ form.id ? '编辑' : '新增' }权限点`" :visible="showDialog" @close="cancel">
      <!-- 表单 -->
      <el-form ref="form" :model="form" :rules="rules" label-width="120px">
        <el-form-item label="权限名称" prop="name">
          <el-input v-model="form.name" style="width:90%" />
        </el-form-item>
        <el-form-item label="权限标识" prop="code">
          <el-input v-model="form.code" style="width:90%" />
        </el-form-item>
        <el-form-item label="权限描述">
          <el-input v-model="form.description" style="width:90%" />
        </el-form-item>
        <el-form-item label="开启">
          <el-switch
            v-model="form.enVisible"
            active-value="1"
            inactive-value="0"
          />
        </el-form-item>
      </el-form>
      <el-row slot="footer" type="flex" justify="center">
        <el-col :span="6">
          <el-button size="small" type="primary" @click="confirm">确定</el-button>
          <el-button size="small" @click="cancel">取消</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>
<script>
import { addPermission, delPermission, getPermissionDetail, getPermissions, updatePermission } from '@/api/permission'
import { transListToTree } from '@/utils'
export default {
  name: 'Permission',
  data() {
    return {
      list: [],
      form: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 父级权限 id
        enVisible: '0' // 默认关闭
      },
      rules: {
        name: [{ required: true, message: '请输入权限名称', trigger: 'blur' }],
        code: [{ required: true, message: '请输入权限标识', trigger: 'blur' }]
      },
      showDialog: false
    }
  },
  created() {
    this.loadData()
  },
  methods: {
    async loadData() {
      this.list = transListToTree(await getPermissions())
    },
    addPermission(pid, type) {
      this.form.pid = pid
      this.form.type = type
      this.showDialog = true
    },
    async confirm() {
      // 兜底校验
      await this.$refs.form.validate()
      // 判断是否为编辑
      if (this.form.id) {
        await updatePermission(this.form)
        //  提示消息
        this.$message.success('修改成功')
      } else {
        await addPermission(this.form)
        //  提示消息
        this.$message.success('新增成功')
      }
      this.loadData()
      this.showDialog = false
    },
    cancel() {
      this.form = {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 默认关闭
      }
      this.$refs.form.resetFields()
      this.showDialog = false
    },
    // 编辑
    async editPermission(id) {
      // 根据获取id获取详情
      this.form = await getPermissionDetail(id)
      this.showDialog = true
    },
    // 删除
    async delPermission(id) {
      try {
        await this.$confirm('确定要删除该数据吗')
        await delPermission(id)
        this.loadData()
        this.$message.success('删除成功')
      } catch (error) {
        console.log(error)
      }
    }
  }
}
</script>

<style lang="scss" scoped>
.app-container {
  padding: 20px;
  & > .el-button {
    margin-bottom: 10px;
  }
}
</style>
